Citrine 4mm Faceted Bicone - 15-16 Inch hubei turquoise iron or manganese impurities within

iron or manganese impurities within the stone

Later determined to be an iron meteorite

Phosphosiderite is a combination of phosphorus and iron

as well as gray and white inclusions in marbled patterns

who performed early research into the many optical properties of mica

Citrine 4mm Faceted Bicone - 15-16 Inch hubei turquoise iron or manganese impurities withinCitrine is a transparent Quartz, ranging in color from pale yellow to golden yellow, honey or brown, giving it a similar appearance to Topaz. It may also contain rainbow to colored or sparkling inclusions. The name comes from the French word for lemon, citron. It was a prized gem in Greece as far back as 300 BCE.